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Old 11-26-2005, 04:48 PM   #1
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Question How much BOOST...

How much boost will the stock SVT block handle??

I know a CGI block is stronger, but both have the oil squirters which helps to cool the pistons. I've heard that the CGI is 25% stronger than the SVT.... but just how strong IS the SVT??


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Old 11-26-2005, 04:57 PM   #2
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I've done 22 or 23psi.... but the J&S didnt like it....... I'm starting to work on something and need some info...
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Old 11-26-2005, 05:04 PM   #3
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With what power you have and what power you must be thinking about go with the CGI block , Ill make you a good deal on one

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Your block isnt what is going to go first it will be the Pistons or rods

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Old 11-26-2005, 05:07 PM   #4
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well, the svt and standard zetec block are the same except for the oil squirters. I also don't think the boost psi is really a factor. I believe that it's more an issue of how much torque/power are you running before it generates so much heat that it starts having problems. of course, you could offset this by upgrading your cooling system. that being said, I think that the stock block (svt) can hold around 400-450 tq/hp before having reliability issues. the standard zetec I think would crap out around 375-400 due to lack of oil squirters (cyl wall lubrication, piston cooling). tune would have a large impact on this though, after all, detonation can easily blow holes in your pistons, bend your crank, which in turn could warp your block, or cause a variety of other problems
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Old 11-27-2005, 01:07 AM   #5
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Tom has a 500 hp zetec dont he?
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Old 11-27-2005, 06:44 AM   #6
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^^^^ Yes he does, but its not a stock block its a CGI block.
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Old 11-27-2005, 07:06 AM   #7
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i thought he had stock block but build internals...
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Old 11-27-2005, 07:23 AM   #8
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I love the fact that thier are a lot or 4 - 5 star focus fanatics answering this thread lol
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Old 11-27-2005, 12:57 PM   #9
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I plan on running around 13-15 haha i know thats an awkward range. but i dont want to replace the block. however i would really like to see what the limit is as far as boost on the stock setup. i would also like to know about reliability. (i agree with sleepyboy...its like vip or somthing haha..please excuse my stupidity as humor)
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Old 11-27-2005, 01:43 PM   #10
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There never is a dumb question here. Only on the jet there are, LOL.
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